<template>
  <div>
    <!-- 头部面包屑 -->
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item><a href="/">用户管理</a></el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 搜索与添加区域 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>

      <!-- 用户列表区 -->
      <el-table :data="userList" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChanged(scope.row)"
            >
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditDialog(scope.row.id)"
            ></el-button>
            <!-- 删除按钮 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeUserById(scope.row.id)"
            ></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip
              effect="dark"
              content="分配角色"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>
    <!-- 添加用户的对话框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%"
      @close="addDialogClosed"
    >
      <!-- 内容主题区域 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>

      <!-- 底部按钮区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户的对话框 -->
    <el-dialog
      title="修改用户"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClosed"
    >
      <el-form
        :model="editForm"
        :rules="editFormRules"
        ref="editFormRef"
        label-width="70px"
        class="demo-ruleForm"
      >
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    // 验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      // 验证邮箱的正则表达式
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/;

      if (regEmail.test(value)) {
        // 合法的邮箱
        return cb();
      }
      cb(new Error("请输入合法的邮箱！"));
    };
    // 验证手机号的规则
    var checkMobile = (rule, value, cb) => {
      const regMobile =
        /^(0|86|17951)?(13[0-9]|15[0123456789]|17[678]|18[0-9]|14[57])[0-9]{8}$/;

      if (regMobile.test(value)) {
        return cb();
      }
      cb(new Error("请输入合法的手机号！"));
    };

    return {
      // 获取用户列表的参数对象
      queryInfo: {
        query: "",
        // 当前页数
        pagenum: 1,
        // 当前每页显示多少条数据
        pagesize: 2,
      },
      userList: [],
      total: 0,
      // 控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      // 添加用户表单数据
      addForm: {
        username: "",
        password: "",
        email: "",
        mobile: "",
      },
      //添加表单的验证规则对象
      addFormRules: {
        username: [
          { required: true, message: "请输入用户名", trigger: "blur" },
          {
            min: 3,
            max: 10,
            message: "用户名长度在3-10个字符之间",
            trigger: "blur",
          },
        ],
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          {
            min: 6,
            max: 15,
            message: "用户名长度在6-15个字符之间",
            trigger: "blur",
          },
        ],
        email: [
          { required: true, message: "请输入邮箱", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" },
        ],
        mobile: [
          { required: true, message: "请输入手机号码", trigger: "blur" },
          { validator: checkMobile, trigger: "blur" },
        ],
      },
      // 控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      // 查询到的用户信息对象
      editForm: {},
      // 修改表单的验证规则对象
      editFormRules: {
        email: [
          { required: true, message: "请输入邮箱", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" },
        ],
        mobile: [
          { required: true, message: "请输入手机号码", trigger: "blur" },
          { validator: checkMobile, trigger: "blur" },
        ],
      },
    };
  },
  created() {
    this.getUserList();
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get("users", {
        params: this.queryInfo,
      });
      // console.log(res);
      if (res.meta.status !== 200)
        return this.$message.error("获取用户列表失败！");
      this.userList = res.data.users;
      this.total = res.data.total;
    },
    // 监听 pagesize 改变的事件
    handleSizeChange(newSize) {
      // console.log(newSize);
      this.queryInfo.pagesize = newSize;
      this.getUserList();
    },
    handleCurrentChange(newPage) {
      // console.log(newPage);
      this.queryInfo.pagenum = newPage;
      this.getUserList();
    },
    // 监听 switch 开关状态的改变
    async userStateChanged(userinfo) {
      // console.log(userinfo);
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      );
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state;
        return this.$message.error("更新用户状态失败！");
      }
      this.$message.success("更新用户状态成功");
    },
    // 监听添加用户对话框关闭事件
    addDialogClosed() {
      this.$refs.addFormRef.resetFields();
    },
    // 点击按钮，添加新用户
    addUser() {
      this.$refs.addFormRef.validate(async (valid) => {
        // console.log(valid);
        if (!valid) return;
        // 可以发起添加用户的网络请求
        const { data: res } = await this.$http.post("users", this.addForm);
        if (res.meta.status !== 201) {
          this.$message.error("添加用户失败！");
        }
        this.$message.success("添加用户成功！");
        // 隐藏添加用户的对话框
        this.addDialogVisible = false;
        // 重新获取用户列表数据
        this.getUserList();
      });
    },
    // 展示编辑用户的对话框
    async showEditDialog(id) {
      const { data: res } = await this.$http.get("users/" + id);
      if (res.meta.status !== 200) {
        this.$message.error("查询用户失败！");
      }
      this.editForm = res.data;
      // console.log(id);
      this.editDialogVisible = true;
    },
    // 监听修改用户对话框关闭事件
    editDialogClosed() {
      this.$refs.editFormRef.resetFields();
    },
    // 修改用户信息并提交
    editUserInfo() {
      this.$refs.editFormRef.validate(async (valid) => {
        // console.log(valid);
        if (!valid) return;
        // 发起修改用户信息的数据请求
        const { data: res } = await this.$http.put(
          "users/" + this.editForm.id,
          { email: this.editForm.email, mobile: this.editForm.mobile }
        );
        if (res.meta.status !== 200) {
          this.$message.error("修改用户信息失败！");
        }

        // 隐藏修改用户的对话框
        this.editDialogVisible = false;
        // 重新获取请求
        this.getUserList();
        // 提示修改成功
        this.$message.success("修改用户信息成功！");
      });
    },
    // 根据id删除对应的内容
    async removeUserById(id) {
      // console.log(id);
      // 弹框询问用户是否删除数据
      const confirmResult = await this.$confirm(
        "此操作将永久删除该用户, 是否继续?",
        "提示",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning",
        }
      ).catch((err) => err);

      // 如果用户确认删除，则返回字符串 confirm
      // 如果用户取消删除，则返回字符串 cancel
      // console.log(confirmResult);
      if (confirmResult !== "confirm") {
        return this.$message.info("已取消删除");
      }
      const { data: res } = await this.$http.delete("users/" + id);
      if (res.meta.status !== 200) {
        return this.$message.error("删除用户失败");
      }
      this.$message.success("删除用户成功");
      this.getUserList();
    },
  },
};
</script>
 
<style lang = "less" scoped>
</style>